Apparatus for dyeing, bleaching, &amp;c.



A. w. THOMPSON.

APPARATUS FOR DYBING, BLEAOHING, M.

APPLICATION FILED APB. 2.1909.

Patented July 6, 1909.

mmiw I. ammo e04 Momumomnmm. minim-on. uv n UNITED ALBERT W. THOMPSON, ()l" MANUHES'JER, NEW HAMPSHIRE.

No. 926,782. Specification of Letters Patent.

Application filed April 2, 1909. Serial No. 487,548.

T 0 all whom it may concern: 1 dogs are used one of two cases is present,

Be it known that l, ALBERT W. TnoiuPsoN, a citizen of the United States, anr Manchester, county of l'lillsboro, State of New Hampshire, have invented an Improvement in Apparatus for Dyeing, Bleaching, and the Like, of which the following description, in connection with the accom anying drawing, is a specification, like characters on the drawing representing like parts.

My present invention relates to that type APPARATUS FOR DYEING, BLEACHING, 86C.

of apparatus for dyeing, bleaching or other upon the rod and nut.

culating liquor, in which the material to he nstance as raw cotton, is placed in a large open vat, made of cast iron, and after being compressed into the vat is still exists, due to the upward pressure of the held therein by a strong metallic cover plate. plate upon the inner end of the dog, and the This late is then secured in position and by lower end of the hub bears against the outer suita )le pumping apparatus the liquor is side of the rod while the u )per end of the hub forced into the vat at the bottom and driven bears against the inner si( e of the rod, resultupward through the mass of material, the ing in a very heavy bending strain on the liquor escaping through perforations in the rod, localized at the center of rotation, viz 1-- cover or compression plate and passing at the lower end of the hub. As a result of thence back to the pump to be again forced tl'iesc strains bent and broken rods have been a matter of constant occurrence, so that the rods were in frequent need of replacement or pressures to which it is subjectml, and tho repairing, and not only that but the dogs means for holding down the compression plate themselves would frequently break owing to must be sufliciently powerful to hold the plate against the upward pressure. In apparatus My present invention has particular referof this type it is customary to mount a series ence to the means for holding the compresof upright rods on the side wall of the vat, to sion plate in operative position, in apparatus specified, and it has treated, such for i into the vat. Such apparatus has to be constructed of great strength to withstand the enter aperturcd hubs of dogs which are downof the type previously turned to overhang the lip of the vat and for its 0b ect the produc bear against the top of the compression means of improved and eflicient construction plate, at or near its periphery, and somewhereby have eliminated the objectionable times the dogs are cast integral with the features of holding devices now in common plate, the dogs being held down upon the use.

rods by means of wedges or by nuts screwed The various novel features of my invenonto the rods above the hubs. Either of tion will be fully described in the subjoined these means for holding down the plate is obspecification and particularly pointed out in jectionable in actual practice, for several rcat Worthless, as it cannot be held proper y in thereto embodying one form of my p position, and the dogs must be very accurately placed on the plate in order to prop structure illustrated in Fig. 1; erly receive the rods on the vat. The usual smaller scale is a top plan view of the vat and form of separate dogs is, however, much more compression plate, showing the arrangement objectionable in practice, such dogs having of the holding means for the plate.

each a hub to receive the rod and an inwardly extended, downturned portion to overhang the lip of the vat and bear upon the top of the compression plate. When these i plate to hold the materialC, Fig. 1,un

PATENT OFFICE.

Patented July 6, 1909.

supposing that the upright rods are provided l resident of i with nuts to hold the dog hubs down against upward pressure on the compression plate. First, when the nut is screwed down until the lower end of the hub bears on the rod-supporting bracket the lift of the plate applied to the inner end of the dog tends to cause rotation about the bearing point of the hub on the bracket, and thereby applying a greatly multiplied bending and prying strain Second, when the wise treating material to the action of a cirnut is not screwed down so far a clearance space is left between the bottom of the hub and the top of the rod-bracket.

The tendency to rotate, above referred to,

the strain to which they were subjected.

tion of novel holding e claims annexed thereto.

Figure 1 is a partial section and elevation When the dogs are cast integral with the of a portion of a vat and the compression plate the breakage of a dog renders the late plate therefor, with holding means applied invention; Fig. 2 is a top Fig. 3 on a ty e referred to, and B is the 001 pression during treatment ,said plate in practice being usually dished, and perforated, the plate having on its upper face radial sti'fl'ening and strengthening ribs 1) terminating in an annular upright li J 1) shown as adjacent the eripheral edge ol the plate.

Tile parts of the apparatus so far described are of well known construction, the plate fitting within the open top of the vat and holding therein the cotton or other material to be subjected to the action of liquor circulated through the vat and the material.

I will now describe my novel and improved means for holding the compression platein position against the powerful upward thrust to which it is subjected. A series of upright downhold members, shown as strong rods 1 headed at their lower ends at 2 and threaded at their upper ends, as at 3, Fig. 1., are mounted upon the exterior of the vat, the latter having secured to or formed upon its side walls brackets 4 rovided with open ings 5 throu h which t e rods are loosely extended. he head 2 of a rod abuts against the bottom of the bracket and is held from dropping by a set-screw 6, Fig. 1, mounted in a stand 7 bolted to the vat, this arrangement permitting a broken rod to be readily replaced, it being understood that as the rods 1 are subjected to tension strains when in use the stands 7 and set-screws 6 support only the weight of the downhold rods. As shown in Fig. 1 the upper ends of said rods extend. above the upper edge or lip of the vat and are adapted to enter loosely hollow hubs 8, each formed integral with and depending from a radial extension 9 of a dog I), a plurality of such do s being connected with the plate B. Each og D in practice is preferably made as a heavy castin having mner and outer feet 10, ll ada te respec tively to rest upon the top of a ri b and upon the plate outside the lip b, the elongated body of the dogs extending radially upon the top of the plate. Between the legs the dog is provided with opposite depending ears 12 which straddle and receive loosely between them the radial rib b of the compression plate on which. the dog is mounted. An elongated slot 13 is formed in each ear, to receive a headed attaching bolt 14 passed through the two ears and throiwh a hold I)", see dotted lines Fig. 2, in the rib, said bolt being secured by a nut 15. The detachable connection thus formed between the compression plate and a dog not only permits the dog to be removed in case of breakage and a new one substituted, but it also permits a limited radial movement of the dog and a slight pivotal movement thereof. So, too, as the distance between the cars is greater than the thickness of the rib b of the plate 13, as shown in Fig. 2, there is some lateral play permitted to the dog, which various movements enable the dog to be readily positioned to enable the downhold rod 1 to easily enter the hub 8. That is, there is no such absolute accuracy required in the positioning of the rods and dogs on the vat and compression plate, respectively, as wohld be necessary were said parts rigidly or permanently tached to the vet and the plate. The extension 9 of the dog is stiilened and strengthened by a lateral flange 9*, shown, the extension overhanging the side wall of the vat to bring the hub in proper position relatively to the downhold member with which it is to cooperate.

In practice the'vat is filled with the material and the latter is pushed or pressed down in any convenient manner, after which the plate B is swung into position over the vat by suitable tackle, (not shown) and lowered until the several rods 1 enter and pass up through the hubs of the dogs. The plate must now be secured in position and for this purpose heavy nuts 16 are screwed onto the threaded ends 3 01' the downhold members, the nuts being set up against the hubs and forcing them and the compression plate downward to the position shown in Fi 1. The plate is thus firmly and securely held in place, the nuts 16 maintaining the dogs and the downhold members in cooperation during the circulation of the liquor through the vat and the material contained therein.

From an. inspection of Fig. 1 it will be seen that the upward thrust of the plate B is transmitted to each dog through the separate feet 10 and 11 thereof, tending to obviate any twisting strain upon the dog or upon the cooperating downhold rod, so that there is practically no bending strain exerted upon the latter. sure of the plate upon the foot 11 has a tendency to ti or rotate the dog about the lower end of t e hub 8, whether said hub is resting upon the top of the bracket or .is somewhat above it, but this tendency is completely nullified by the connection 14 between the dog and the plate, intermediate the foot 11 and the center of the late. As a result the uplift of the dog an its hub 8 is in a direction parallel to the axis of the cooperating rod 1, just as if the dog were integral with the late, and there is no tendency to bend or break the rod nor is there any tendency to tilt and pry off the nut, as will be manifest. While I thus secure the advantage attendant upon the use of dogs integral with the plate I obviate the disadvantages thereof, and eliminate the objectionable features present in the separate dogs now in use while providing for the ready replacement of a dog should it break by any accident or by reason of some inherent weakness in the casting.

By my novel construction I also rovide for a better distributed and reduce strain That is, the upward pres- Cit cesstul in the highest degree, as no repairs or breakage of either dogs or downhold rods 1 have been required. Should a dog he too l'ar in or out when the plate B is positioned on the material in the vat, so that thehul) does not exactly register with its proper downhold rod, the dog can he slid in or out to correct position, as required. and it can also be moved laterally more or less ill'u'a'wessary, Without requiring anybodilyinovenrent ol the plate itself, and without in any way interfering With the operation of the ai )para tus. This is of great value in practice as it enables the compression or cover plates to be applied and secured much more quickly and easily than would be possible otherwise, as will be apparent. Should a dog break the plate is not thereby rendered .vorlhless. tor the broken dog is detached and a new one is applied in its place.

The dogs herein described can be readily applied to winpression plates now in use by simply drilling holes in the radial ribs thereof to receive the connecting bolts 14. illie in Fig. 3 l have shown l'our dogs and their cooperating" downhold members my invention is not thereby restricted to such an arrangement, as a greater or less numbcrniay be en'iployed according to circumstances. and various changes or modifications may be made by those skilled in the art withontdm parting from the snirit and scope of my invention as set l'orth in the claims annexed hereto.

Having: Fully described my invention, What I claim as new and desire to secure by Letters Patent isz 1. In apparatus for dyeing", the combination with a vat to contain the material to be treated, and a compression plate or cover for the material, oi means to hold the plate in position, so id means conipl isingr a plurality ol upright rods lixedly attaclwd to the exterior of the vat, a series of dogs detaclmbly inounted on the plate and extended radially over the top of the vat. each dos, lniving an upright hub to receive one of said rods, means to prevent tipping ol' the dogs when the? plate is Hllbjfitttll to upward pressure, and

nuts to retain the hubs in position on the rods.

In apparatus oi the class described, the combination with a vat to contain the material to be treated, and a radially-iibbed coinprcssion plate for the material, of a ot iolding dog's each haying at its outer end a hub extended beyond the vat, and a foot bearing upon the plate between the hub and the connection of the do with the plate, a rocking and sliding connection between each dog and a rib ol' the plate, a series of upright l l l and adapted to enter the hubs of the dogs, and means to retain the hubs in position on the rods.

3. In apparatus of the class described, the combination with a vat to contain the material to be treated, and a compression plate for the material, radially ribbed on its upper face and provided with an annular, upright lip set in from its edge. of a series of holding dogs, each dog having depending ears to straddle loosely a rib between the feet ol' the dog, inner and outer feet to rest on the rib and on the plate outside the lip, respectively, and an upright hub on the outer end of the dog outside the wall of the vat, a detachable, radially slidable connectioi'i between the cars or each dog; and the adjacent rib ol' the plate, a series oi tunic-ht downhold rods mounted on the exterior of the vat and adapted to enter the hubs ol' the dogs, and adjustable means to retain the hubs on said rods.

4. in apparatus of the class described, the combination with a vat to contain the material to be treated, and a compression plate for the material, of a plurality of upright downlioltl rods mounted on the exterior ol the vat, a. plurality of dogs dctacliably connected with the plate and radially extcndcd above the side Wall ol the vat to cooperate with the rods, each do; havin a bearing upon the plate between its connection therevrith and the coinierating rod, and means to retain the cooperating portions ol the dogs in position on the rods.

5. In apparatus of the class described, the combination with a vat to contain the material to be treated, and a compression plate for the material, of a plurality oi holding dops mounted on the plate and extended radially above the side wall of the vat, a pivotal and radially movable, detachable connection between each dog and the plate. a depending; loot on each dog; bearing on the plate between said connection and the outer end oi the dog, donnhold means mounted on the exterior of the vat to cooperate with the radial extensions of said dogs, and. adjustable devices to maintain the dogs and said downbold means in cooperation.

6. .ln apparatus ol' the class described, the combination with a vat to contain the material tobe treated, and a compression plate for the material, ol a plurality of holding, dogs mounted on the plate, each do; having a radial extension terminating: in an upright hub, and a plurality of feet on each dog, the outer foot of each dog; bearing upon the top of the plate near its 'ieriphcry, a pivotal and radially movable, detachable connection be tween each dog and the plate, intermediate the center of the plate and the outer loot, a plurality of upright don'nhold rods mounted on the exterior of the vat and adapted to downhold rods externally mounted on the vat i lOOSPlY enter the hubs of the dogs, the upper ll t) 'combination with a vat to contain thematerial to be treated, and a compression plate for the material, of a plurality of holding, dogs mounted on the plate, each dog having at its outer end a radial extension terminating in an elongated hub outside the vat, and having a dependingportion hearing: on the plate near its periphery, a loose, radially movable and detachable connection between. each dog" and the plate, upright downhold rods mounted on the exterior oi the at and adapted to enter the hubs, and means to retain the hubs in position on the rods.

8. The combination, with a vat to contain the material to be treated, and a compression plate to retain the material in tho vat, of a plurality of upright downhold rods mounted on the exterior of the vat, a plurality of dogs carried by and detachably connected with said plate and cooperating each with a rod, means to prevent bending action of the dogs upon said rods when the plate is subjected to upward pressure, and devices to retain the cooperating portions of the dogs in position on the rods.

9. The combination, with a rat having a series of upright downhold rods mounted on its exterior, and a compresshm plate to re tain in the vat the material to be treated, of a series of detaehahle dogs carried by the plate, each dog having a foot bearing on the plate and an upright hub at its outer end to receive a rod. a positive conneet1on between 'ach dog and the plate, niterinodiate the center of said plate and the foot bearing thereupon, and a retaining nut screwed onto each rod above the hub of the corresponding dog. 10. .ln apparatus oi the class described,

the combination with a vat to contain the 3 material to be treated, and a compression plate tor the material oi a plurality oi holdmg dogs carried by the plate and in engagement therewith near its periphery, a loose and radially movable, detachable connection between each dog and the plate, intermediate such point of engagement and the center of the plate, downhold members mounted. on the exterior of the vat to cooperate with the dogs and hold the plate in position, and. means to maintain said dogs in cooperation with the downhold members.

11. In apparatus of the class described, the combination with a vat to contain the material to he treated, and a compression plate for the material, of a plurality of up right downhold members mounted on the e7-:terior of the vat, a corresponding number of radially extended dogs detachably mounted on the plate and adapted to cooperate with said members, means to prevent tipping or twisting of the dogs when the date is subjected to upward pressure, and means to maintain the dogs and the (lUWlil'lOld me1nhers in eot'iperation to retain the plate in position.

12. In apparatus of the class described, the eombinatirm with a vat to contain the material to be treated, and a compression plate for the material, of a plurality of upright downhold rods mounted on the exterior of the vat, a plurality of dogs each having a hearing on the top of the plate near its pcriphery and radially extended above the side wall of the rat to engage a rod, a medtive connection between each dog and the plate, intermediate the center of the latter and the bearing, to counteract twisting of the dog when upward pressure is applied thereto by the plate, and means to retain the eoi'iperating portions oi. the dogs in position on the rods.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

,ALBE RT W. THOMPSON Witnesses:

EnoUAnn A. Murray), Geo. H. WARREN. 

